Goldeneye,
Fair point, but LGW South Terminal is at least connected directly to the station.
What we have at BHX is a bit of a sham, because the people mover (sorry, downgraded Maglev) only provides a link between the station and Terminal 1. Pax have to trundle through T1 to get to T2.
There was some comment in the article about not wanting to build a guided busway and the rail link. I'm sure that a variation of Goldeneye's suggestion AND the busway could have been built. I think DUS might be a good example of the kind of scheme I think you are talking about? ICE station at the eastern end of the runways + S-bahn station under the terminal complex.
There would then have been plenty of change from £600m left over to upgrade walking and cycling facilities across all of Scotland - and the rest of the UK for that matter, and provide a few more bus subsidies, and re-open a couple of branch lines..............